For 1, which tyres / rims size are you using? Are they stock (or nearest to it) or oversized?
If they are oversized, then it might be possible that when you turn, they rub against the wheels arches / sleeves covers (made of plastic material) causing noise.
Still, have your suspension checked thoroughly for any / all issues, or let someone expert drive it and diagnose tye issues.
For point No. 2, its not normal. Have it checked.